Petrus Bertius
Flemish theologian and scientist (1565–1629)
Petrus Bertius (also Peter Bertius; (in Dutch) Pieter de Bert) (14 November 1565 – 13 October 1629) was a Flemish philosopher, theologian, historian, geographer and cartographer. Bertius published much in mathematics, and historical and theological works, but he is now best known as a cartographer with his edition of the Geographia of Ptolemy, which includes Mercator's Ptolemaic atlas from 1578 as well as parallel Greek and Latin texts.
Early life
He was born in Beveren (Alveringem), the son of a Flemish preacher Pieter Michielszoon Bardt, who left Flanders for religious exile in London around 1568, with his family. In 1577 Petrus Bertius returned to the Netherlands, to study at the University of Leiden. He supported himself by tutoring younger students and continued travelling in Europe. In 1593 he was appointed to subregent of the Leiden Statencollege, marrying in the same year Maritgen, daughter of Johannes Kuchlinus, the first regent of the Statencollege, whom he would succeed after his death in 1606 as a regent. He was also connected by marriage to Jodocus Hondius and Pieter van den Keere, his brothers-in-law and both cartographers, and this would influence his later life.
Philosophy & theology
Bertius wrote an introduction to Boethius's Consolations of Philosophy, which was published in Giovanni Antonio Volpi's edition of the text in 1721.
Bertius was a friend of Jacobus Arminius, and spoke at his funeral in 1609. A controversy arose with Francis Gomarus, the chief opponent of Arminianism, on the basis of the published version of the funeral oration.
Begin with the source’s own compact description: “Petrus Bertius” is flemish theologian and scientist (1565–1629). The dossier treats that line as a proposition to test through Petrus, Bertius and Flemish, not as a finished interpretation.
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Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated May 24, 2026. The linked authority identifier is Q2712134. VIAF identifies the subject as 22171968. The Library of Congress control number is n84133067. 5 of 5 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1565, 1629, 1578 and 1568.
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This entry incorporates text from “Petrus Bertius” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.